Reputational peer nominations are a common method for measuring involvement in aggression-related behaviors, encompassing the roles of aggressor, victim, and defender, but may be influenced by students' affective (dis)liking relationships. This social network study investigated whether dyad- and group-level (dis)liking relationships affect perceptions of classmates' involvement in physical aggression and explored the moderating roles of classroom moral disengagement and defending norms. The study employed a longitudinal design with two time points 6 months apart, encompassing 27 classrooms and 632 early adolescents. Using multiplex stochastic actor-oriented modeling, we found that liking, but not disliking, significantly influenced perceptions. Liking a classmate increased the likelihood of perceiving them as a defender. Moreover, students' own perceptions (aggressor, victim, and defender nominations) were shaped by the perceptions of classmates they liked, while classroom moral disengagement reduced this influence for defender nominations. Results on classroom defending norms were mixed. Our findings underscore the importance of accounting for students' liking relationships and classroom-level norms to reduce bias in peer nominations and improve the accuracy of assessments of aggression-related behaviors.

• Klíčová slova
• SAOM, bullying, classroom bullying norms, defending, liking and disliking, multiplex social networks, physical aggression, victimization,
• MeSH
• afekt MeSH
• agrese * psychologie   MeSH
• chování mladistvých psychologie   MeSH
• dítě MeSH
• interpersonální vztahy * MeSH
• lidé MeSH
• longitudinální studie MeSH
• mladiství MeSH
• oběti zločinu * psychologie   MeSH
• školy MeSH
• sociální normy MeSH
• sociální percepce * MeSH
• studenti psychologie   MeSH
• vyrovnaná skupina * MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH

Bias-based cyberaggression-hateful and bias-based content and interactions via information and communication technologies-is a frequent experience for young internet users that can result in detrimental consequences for both individuals and society. Ample research has focused on the factors related to involvement in bias-based cyberaggression. This study systematically reviews the research published in the past decade about the investigations into exposure, vicarious and direct victimization, and aggression among young people (up to age 30). We aimed to provide a complex summarization of the research findings about the risk and protective factors and the consequences of experiences with bias-based cyberaggression-specifically the diverse manifestations of bias-based cyberaggression targeted toward ethnicity, race, nationality, religion, sexual orientation, gender, weight, and disability. Three academic databases (EBSCO, Scopus, and WoS) were searched and 41 articles were included in the review. The results show a dominant research focus on bias-based cyberaggression victimization and on the bias-based cyberaggression that targets ethnicity, race, nationality, and religion, leaving a gap in the knowledge about the different types of targeted group categories and bias-based cyberaggression perpetration. The identified risk factors for bias-based cyberaggression involvement included being a minority, low psychological well-being, other victimization experiences, higher internet use, and risky internet use. An overlap was found for bias-based cyberaggression involvement with other offline and online victimization experiences. This review showed limited knowledge about protective factors, namely the social-level and contextual factors. The identified factors, as well as the gaps in the knowledge, are discussed in relation to research implications and practice and policy implications.

• Klíčová slova
• bullying, hate crimes, internet and abuse, youth violence,
• MeSH
• agrese psychologie   MeSH
• dospělí MeSH
• kyberšikana * psychologie   MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• oběti zločinu * psychologie   MeSH
• ochranné faktory MeSH
• rizikové faktory MeSH
• sexuální chování psychologie   etnologie   MeSH
• sexuální faktory MeSH
• Check Tag
• dospělí MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH
• systematický přehled MeSH

BACKGROUND: Despite the implementation of antibullying policies, schools in the United Arab Emirates (UAE) witnessed an increase in bullying prevalence. The aim of our study was to assess bullying victimization in schools in the UAE, types of bullying, and factors and outcomes related to bullying behavior. METHODS: A cross-sectional survey was conducted in randomly selected private and public schools in Al Ain City. A structured, self-administered questionnaire was used to collect data from students in grades 6-8 (Ages 10-15). We adapted the US CDC 'Bully Survey' for cultural relevance in the UAE through feedback from focus group meetings with teachers. Data analysis, conducted using R software, involved stratified analysis by school type and utilized Chi-Squared and Fisher's exact tests to identify factors associated with school bullying. RESULTS: The study sample consisted of 723 students of whom 68% were males, and 58% were Emirati nationals. The overall prevalence of bullying victimization in schools was 37%, with 40% in private schools and 35% in public schools. Cyberbullying was more prevalent in private schools (37%). Physical bullying was reported by 20% and verbal bullying by 12%, with a higher prevalence of physical bullying in private schools (24%) and among males (23%). The study's findings showed significant emotional and academic impacts of bullying, including feelings of sadness and learning difficulties, contributing to a rise in school absenteeism. CONCLUSIONS: The study reveals widespread bullying victimization in UAE schools, mainly in classrooms, with group exclusion and verbal abuse as key forms. It underscores bullying's psychological impact and the greater awareness of parents compared to teachers. The effective intervention strategies should not only involve students, teachers, and school staff, but also actively engage parents by fostering stronger communication channels between schools and families, and providing parents with resources and training to recognize and address bullying. These strategies should aim to create a cohesive network involving the entire school community, thus fostering a safer and more inclusive environment for students. The findings stress the need for inclusive antibullying programs involving the entire school community to foster a safer environment.

• Klíčová slova
• Adolescent, Bullying, Children, Mental health, School, School health, United Arab Emirates, Victimization, Violence,
• MeSH
• dítě MeSH
• lidé MeSH
• mladiství MeSH
• oběti zločinu * statistika a číselné údaje   psychologie   MeSH
• prevalence MeSH
• průřezové studie MeSH
• průzkumy a dotazníky MeSH
• šikana * statistika a číselné údaje   psychologie   MeSH
• školy * MeSH
• studenti psychologie   statistika a číselné údaje   MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Spojené arabské emiráty epidemiologie   MeSH

AIMS: One of the most widely used evidence-based anti-bullying programs, KiVa, originates from Finland and aims to change students' peer context, activate teachers, and inform parents with two main components (universal preventive actions and indicated actions when bullying occurs), complemented by monitoring. Because research documented somewhat varied KiVa outcomes in different countries and because there is a lack of research focusing solely on the effectiveness of the universal and indicated actions, this study aimed to evaluate the effectiveness of KiVa main components when implemented in a new country. This two-arm parallel cluster randomized control trial (RCT) evaluated the effectiveness of the KiVa anti-bullying program in elementary schools in the Czech Republic. It examined the effects of the universal and indicated actions on self-reported bullying and victimization as primary outcomes and well-being as a secondary outcome, while keeping monitoring constant across the intervention and control schools. The study also examined the role of implementation fidelity on the proposed outcomes. METHODS: Schools were allocated via stratified randomization into a KiVa intervention group (12 schools, 35 classes, N = 407 students) or a wait-list control group (12 schools, 32 classes, N = 400 students). The study employed data from baseline and post-measurement waves, which were 10 months apart. RESULTS: The data were analyzed using linear mixed effects models, which showed no significant intervention or fidelity effects for bullying, victimization, and well-being. However, promising trends (at α < .10) were revealed, such as lower levels of bullying observed in the intervention group and in schools with high implementation fidelity. Additional analysis using Bayes factors supported these promising trends and provided moderate support for lower levels of victimization in the intervention group compared to the control schools. CONCLUSIONS: Evaluation of effectiveness of anti-bullying programs could benefit from a more targeted fidelity assessment at the classroom or individual level and from distinguishing between the effects of the main components of the programs and the effects of monitoring. The promising yet non-significant intervention and fidelity effects suggest that schools may require enhanced support and longer implementation time frames than a single school year, especially when implementation faces structural obstacles, such as the Covid-19 pandemic.

• Klíčová slova
• Anti-bullying programs, Bullying, Effectiveness, KiVa, Victimization, Well-being,
• MeSH
• dítě MeSH
• hodnocení programu * MeSH
• lidé MeSH
• oběti zločinu MeSH
• šikana * prevence a kontrola   MeSH
• školní zdravotnické služby organizace a řízení   MeSH
• školy organizace a řízení   MeSH
• studenti psychologie   MeSH
• vyrovnaná skupina MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• randomizované kontrolované studie MeSH
• Geografické názvy
• Česká republika MeSH

Individuals with paraphilic interests in sexual violence or children may be more likely to sexually offend if they possess offense-supportive cognitions. These cognitions may develop in response to childhood adversity. However, this idea is largely based on research in men convicted of sexual offenses and may not generalize to non-incarcerated adults with paraphilic interests. In a sample of 178 adults screened for paraphilic interests in violence or children (from the general Czech population), we hypothesized that childhood sexual abuse and emotional neglect would be associated with offense-supportive cognitions about rape and child molestation. Participants came from a nationally representative sample of Czech adults and were selected if they self-reported high levels of sexual interest in violence and/or children. Participants completed an online survey with self-report measures of sexual orientation, offense-supportive cognitions (Bumby RAPE and MOLEST scales), and childhood sexual abuse and emotional neglect (Childhood Trauma Questionnaire). Controlling for gender, age, and sexual orientation, we found that both rape-supportive cognitions and child molestation-supportive cognitions were significantly associated with higher levels of childhood sexual abuse, but not emotional neglect. These findings indicate that childhood sexual abuse may lead to offense-supportive cognitions among men and women with paraphilia.

• Klíčová slova
• Childhood sexual abuse, DSM-5, Emotional neglect, Offense-supportive cognitions, Paraphilia, Sexual offending,
• MeSH
• dítě MeSH
• dospělí s anamnézou domácího násilí nebo sexuálního zneužívání v dětství psychologie   statistika a číselné údaje   MeSH
• dospělí MeSH
• kognice * MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• nepříznivé zkušenosti z dětství psychologie   statistika a číselné údaje   MeSH
• parafilie psychologie   MeSH
• průzkumy a dotazníky MeSH
• sexuální chování psychologie   MeSH
• sexuální delikty psychologie   statistika a číselné údaje   MeSH
• sexuální zneužívání dítěte psychologie   statistika a číselné údaje   MeSH
• znásilnění psychologie   MeSH
• Check Tag
• dítě MeSH
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mladý dospělý MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• Geografické názvy
• Česká republika MeSH

This paper presents a retrospective review of patterns found in cases of homicides by sharp force over a 13-year period at the Department of Forensic Pathology of the Ostrava University Hospital, Czech Republic. The review summarizes all frequently discussed aspects of such cases including the number and localization of injuries, the presence of defensive wounds, the type of the offending weapon, the cause of death, the place of death, victims' and perpetrators' profiles, their relationship, or toxicological findings. Furthermore, special attention was paid to the evaluation of any accompanying blunt force trauma that may be indicative of an escalation of the assault. The set of data was statistically analyzed. Even though most of the results of this review are consistent with available published studies, noteworthy differences have emerged in some aspects such as the sex and age of the victims, the relationship between the number of injuries suffered and the victims' sex, or the severity of alcohol intoxication in victims.

• Klíčová slova
• Assault escalation, Blunt force trauma, Defensive wounds, Homicide, Sharp force trauma,
• MeSH
• lidé MeSH
• oběti zločinu * MeSH
• otrava alkoholem * MeSH
• retrospektivní studie MeSH
• soudní patologie MeSH
• tupá poranění * patologie   MeSH
• vražda MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH

BACKGROUND: Research indicates that among the risks associated with young people's alcohol and illicit drug use are sexual risks. However, insights into co-occurrence of substance use and sexual risks in adolescent samples and possible differences across countries are limited. METHODS: A sample of 1449 adolescents from Belgium, Sweden, the Czech Republic, and Germany screened positive for risky alcohol/illicit drug use in a web-based intervention against alcohol and illicit drug use. They also reported incidents of sex while being drunk and/or high on drugs, condomless sex on these occasions, and sexualized touching and sexual victimization while being drunk or high on drugs. RESULTS: In the sample, 21.5% of the participants reported sexualized touching, 9.9% being victim to sexual assault, and 49.8% having had sex while being drunk and/or high on drugs; of the latter, 48.3% had condomless sex. Reports on having had sex while being drunk and/or high on drugs were associated with higher levels of past 30-day binge drinking. Being a victim of sexual assault was associated with past 30-day binge drinking only in young men. CONCLUSION: When devising preventive interventions against risky substance use in adolescents, an additional focus should be set on integrating steps against sexual risks.

• Klíčová slova
• adolescence, binge drinking, condom use, illicit drug use, sexual risks, sexual victimization,
• MeSH
• alkoholismus * MeSH
• lidé MeSH
• mladiství MeSH
• nárazové pití alkoholu * MeSH
• oběti zločinu * MeSH
• otrava alkoholem * MeSH
• pití alkoholu MeSH
• poruchy spojené s užíváním psychoaktivních látek * epidemiologie   prevence a kontrola   MeSH
• riskování MeSH
• sexuální chování MeSH
• zakázané drogy * MeSH
• Check Tag
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH
• Geografické názvy
• Belgie epidemiologie   MeSH
• Česká republika epidemiologie   MeSH
• Evropa MeSH
• Německo MeSH
• Švédsko epidemiologie   MeSH
• Názvy látek
• zakázané drogy * MeSH

Physical appearance and, specifically, weight are common reasons for cyberhate attacks among adolescents. Using a between-subject experimental design, this study focuses on the bystanders of such attacks on Instagram. We investigate bystanders' assessments in the form of two moral disengagement (MD) mechanisms-victim blaming and minimizing consequences-and we compare the assessments of attacks that are diversified by the victim's weight (i.e., a victim who is plus-size and a victim who is thinner). We also examine the moderating roles of bystanders' prejudice against people who are plus-size in the form of the so-called anti-fat attitudes, their frequency of viewing body-positive online content, and gender. The study's data come from an online survey conducted in 2020 with a representative sample of 658 Czech adolescents, aged 13-18. We tested our hypotheses with structural equation modeling. The results show that the two MD mechanisms work differently. The victim's displayed weight affected the bystanders' tendency to victim blame: adolescents blamed the victim who is plus-size more than the victim who is thinner, but the victim's weight made no difference in minimizing the consequences of the incident. A moderating effect for anti-fat attitudes and gender was found for victim blaming. Bystanders with higher anti-fat attitudes and boys blamed the victim who is plus-size more than the victim who is thinner. On the other hand, there was no effect for the frequency of viewing body-positive online content for either of the MD mechanisms. The results are discussed with regard to the differences between the two mechanisms and the practical implications for educational and prevention programs for youth.

• Klíčová slova
• adolescents, cyberhate, minimizing consequences, moral disengagement, victim blaming, weight discrimination,
• MeSH
• genderová identita MeSH
• lidé MeSH
• mladiství MeSH
• mravy MeSH
• oběti zločinu * MeSH
• postoj MeSH
• předsudek MeSH
• Check Tag
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

BACKGROUND: This study investigates both offline and online bullying perpetration and victimization in association with problematic internet use (PIU) and problematic smartphone use (PSU), while also considering the related psychosocial difficulties. METHODS: A total of 3939 adolescents (49.4% boys, aged 13-15 years) from a representative sample of schools in Slovakia was obtained from the Health Behavior in School-aged Children (HBSC) project in 2018. Due to the lack of similar complex research and the expected mutual associations among the constructs, we compared exploratory network models that provided separate estimates for boys and girls. RESULTS: The constructs formed similarly clustered networks for both genders, with a few notable differences. Unlike PIU, PSU was not associated with bullying experiences in boys or girls; however, PSU and PIU were partially related in girls. Bullying experiences formed a strong cluster in both networks. Two strong bridges were identified, and they are potential candidates for intervention in both boys and girls: first, traditional bullying victimization connected the cluster of bullying experiences to psychosocial difficulties; and, second, frequently missing sleep or meals due to internet use (behavioral salience) that is connected to the bullying cluster with PIU. CONCLUSIONS: The findings offer an indication for the preventive and interventive work of practitioners who deal with adolescents, as well as complex gender comparisons for the mutual relations of problematic internet and smartphone use, bullying experiences, and the psychosocial difficulties of youth. This study provides evidence that problematic digital media can play a role in bullying experiences irrespective of whether bullying happens offline or online.

• Klíčová slova
• Bullying, adolescence, cyber bullying, problematic internet use, problematic smartphone use,
• MeSH
• chytrý telefon MeSH
• dítě MeSH
• internet MeSH
• kyberšikana * prevence a kontrola   psychologie   MeSH
• lidé MeSH
• mladiství MeSH
• oběti zločinu * psychologie   MeSH
• šikana * psychologie   MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH

School bullying is a serious problem worldwide, but little is known about how teacher interventions influence the adoption of bullying-related student roles. This study surveyed 750 early adolescents (50.5% female; average age: 12.9 years, SD = 0.4) from 39 classrooms in two waves, six months apart. Peer ratings of classmates were used to categorize students to five different bullying-related roles (criterion: >1 SD): bully, victim, bully-victim, defender, and non-participant. Student ratings of teachers were used to obtain class-level measures of teacher interventions: non-intervention, disciplinary sanctions, group discussion, and mediation/victim support. Controlling for student- and class-level background variables, two multilevel multinomial logistic regression analyses were computed to predict students' bullying-related roles at wave 2. In the static model, predictors were teacher interventions at wave 1, and in the dynamic model, predictors were teacher intervention changes across time. The static model showed that disciplinary sanctions reduced the likelihood of being a bully or victim, and group discussion raised the likelihood of being a defender. Mediation/victim support raised the likelihood of being a bully. The dynamic model complemented these results by indicating that increases in group discussion across time raised the likelihood of being a defender, whereas increases in non-intervention across time raised the likelihood of being a victim and reduced the likelihood of being a defender. These results show that teacher interventions have distinct effects on students' adoption of bullying-related roles and could help to better target intervention strategies. The findings carry practical implications for the professional training of prospective and current teachers.

• Klíčová slova
• Anti-bullying, Bullying, Disciplinary sanctions, Group discussions, Teacher interventions, Teacher strategies,
• MeSH
• dítě MeSH
• lidé MeSH
• mladiství MeSH
• oběti zločinu * MeSH
• prospektivní studie MeSH
• šikana * MeSH
• školy MeSH
• studenti MeSH
• vyrovnaná skupina MeSH
• Check Tag
• dítě MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH